An Experimental Study on the Vibration Characteristics of Kevlar/Ep Sandwich Plate with Unsymmetrical Face and Aluminum Honeycomb Core Sandwich Structure

초록

In this study, three different types of plate vibration characteristics are compared. First part of this study is an experiment for aluminum honeycomb core sandwith plates that have different face thickness and cell sizes with all clamped boundary condition. The experimental data are compared with analytical solution and the simulation data obtained from NISA Second part of the study is an structural experiment for Kevlar/Ep FRP sandwich that have unsymmetical face. The experimental data are used for analytical solution. This results of the equation of motion given by Hamiltons principle compares with that of Rayleigh-Ritz method given by energy relationships. Third part of the study is an experiment for stiffend plate which have equivalent mass to aluminum honeycomb core sandwich plates. The experimental data are compared with that of aluminum honeycomb core sandwich plate. The results can show that aluminum honeycomb core sandwich plate is more stiff than stiffened plate in the equivalent mass condition. Fourth part of the study is an experiment for idealized midship section of high-speed vessel which is compared of aluminum honeycomb core sandwich plate, and then compare experimental data with the NISA's simulation datum